Engine and generator cooling system



1,638,146 1927- A. E. BUCHENBERG ENGINE AND GENERATOR COOLING SYSTEM- Filed April 14, 1919 INVENTOR. fl/wn ache/weer;

I ATTORNEY Patented Aug. 9, 1927;

UNITED STATES ALVIN 1 PATENT OFFICE;

BUGKENBEBG, OF TOLEDO, OHIO, ASSIGNOB T IHDUS'IBIAL RESEARCH m3- PORATION, OFTOLEDO, OHIO, A CORPORATION OF DELAWARE.

ENGINE um oarmmron coomne sys'rml.

Application filed April 14, 1919. semi No. 289,952.

5 ing employed as a: source of power for operating the electric generator.

The principal objectcof the invention is the revision ofa common means for cooling th the engine andthe generator, this object being accomplished by passing a strong current of air throu h the engine radiator and then through t e casing of the generator.

Asecondary object of the'invention is the provision of means for preventing warm air from around the engine cylinder being drawn into the fanwhich creates the blast of air employed in the cooling system.

I Other objects, and objects relating to details of construction and economies of manufacture will appearas I proceed with the description of that embodiment of the in-.

vention, which, forthe purposes of the present application, I have illustrated in the accompanying drawing, which shows the invention in side elevation, one part being broken away, and other parts shown in section in order to more clearly illustrate the construction. a Q

-'In the drawing, the base 10 of the complete machine'is shown as integral with the lower part :11 of the engine casing. The engine is of the water cooled Variety, having a water jacket 12 surrounding the cylinder or) cylinders The jacket is connected top andzbottom by pipes 13 and 14, with the u per and lowerends respectively of a rad1ator 15. Hot water from the jacket 12 enters the radiator 15 through the pipe 13. It is there cooled and then returned through the pipe 14, to the c linder jacket to perform again its heat a sorbing function,

An electric generator 16. capable of acting as a motor to'start the engine if desired, is

mounted upon thebase 10. A sin le shaft 17 serves both as the armature sha for the generator, and as the crank shaft of the engine. It passes through an o ening, not shown, in the radiator 15, and tween the radiator and the en ine it carries the engine fly-wheel 18, which in this instance has incorporated within itself blades 19, constituting a fan.

A sheet metal shield 20 is secured at its lower edge by fastenings 21 to the engine casing, forming a partition between the engine cylinder or cylinders and the fly-wheel fan.

The operation of m invention will be obvious from the drawing when taken with the foregoing descri tion. engine is running un er its own power and rotating the electric machine 16 to generate current, the fan blades in the fly-wheel 18 draw in'cool' air from above and to the left of theshield 20and force it out through the radiator 15, and throu h the casing of the generator 16, all as in icated by arrows in the drawing. Thus a single blast of air cools the generator as well as the water in the radiator. The arrangement shown in the drawing of the three elements 15, 16

and 18, is not absolutely essential, as they might be located in some other order, but that illustrated is the preferred arrangement.

I am aware that the particular embodiment of my invention above described, and

When the gas illustratedin the accompanying drawing, is I susceptible of considerable variation without departing from the spirit thereof, and

therefore I desire to claim my invention broadly as well as specifically, as indicated by the appended claims.

I claim as my invention:

1. In an electric generating unit, a water cooled gas engine, a radiator therefor, a generator, a fan, a common shaft for said engine, generator and fan, said generator and radiator being located on the positive side of said fan and one beyond the other respectively in the path of the air moved by the fan. 2. In combination, a water cooled gas-engine, a radiator therefor, a fiy-wheel for said en 'ne mounted between the engine and the ra iator, said 'fly-wheel having a fan incorporated therein, and a shield located between said fly-wheel and the cylinder of said engine, whereby none of the air passing into said fan is drawn from the'space surrounding said cylinder. 7

3. In an electric generating unit, awater cooled gas engine, a radiator therefor, a generator operatlvely connected to said engine, a. fly-wheel for said engine having a fan incorporated therein, said generator and radiator bein located one beyond the other in the Path 0 the air blast from said fan, and a shield located between said fly-wheel and the cylinder of said engine, whereby none of the air passing into said fan is drawn from the space surrounding said cylinder.

ALVIN E. BUCHENBERG. 

